Draft appliance for railway-vehicles



W. McCONWAY, JR. DRAFT APPLIANCE FOR RAILWAY VEHICLES.

APPLICATION FILED JUNE 12, 19I9. 1362 022, Patented Dec. 14, 192B.

3 SHEETS-SHEET I.

W. McCONWAY, JR. DRAFT APPLIANCE FOR RAILWAY VEHICLES,

APPLICATION FILED JUNE 12, 19I9. 1,362,022. v Patented Dec. 14, 1920;

3 SHEETS-SHEET 2- a 1 1 I 1 l l I 1 awue to:

Maw 2 6M Wa ind W. McCONWAY, JR. DRAFT APPLIANCE FOR RAILWAY VEHICLES.

APPLICATION FILED JUNE 12. 1919. 1,362,022, Patented Dec. 14, 1920.

3 SHEETSSHEET 3- UNITED ST TES PATENT OFFICE.

WILLIAM MoCO NWAY, JRL, 0F PITTSBURGH, PENLLSYLVANIA, ASSIGNOR TO THE MoCONWAY & TORLEY COMPANY, OF PITTSBURGH, PENNSYLVANIA, A CORPO- BATION OF PENNSYLVANIA.

DRAFT APPLIANCE FOR RAILWAY-VEHICLES.

' Application filed June 12,

T 0 all whom it may concern Be it known that I,.IVILLIAM MoCoNwAY, Jr., a citizen of the'United States, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Draft Appliances for Railway-Vehicles; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to the construction and mode of manufacture of draftrigging or draft appliances for railway cars, and

has for its object to provide for'the attachment of the coupler and yoke or equivalent draft members in a manner promoting great simplicity, strength and compactness of structure and the elimination of maintenance costs such as are attendant upon the use of tail pins, nuts, cotters, keys and blocks thus manufacturing thedevice is illustrated in the drawings and will hereinafter be described; but it is to be understood that I do not limit myself to any'particular method of casting the parts.

In the drawings illustrating the preferred form of my invention, the scope whereof is pointed out in the claims, g

Figure l is a plan view of a coupler and draft yoke constructed in accordance with my invention, a portion ofthe forward end of the yoke being broken away to disclose the rear end of the coupler stem and the coupler receiving recess or socket at the forward end of the yoke.

Fig. 2 is a view, partly in side, elevation Specification of Letters Patent.

Patented Deo. 14, 1920.

1919. Serial No. 303,694.

Fig. 4L is a detail horizontal section of the forward end of the. yoke, showing in plan a centrally disposed block or form used for shaping the cores at the sides of the yoke.

Fig. 5 is a detail vertical section of the 7 devices illustrated in Fig. 4, the core shapmg form being in side elevation.

F 1g. 6 is a detail horizontal section of the forward end of the yoke with its side cores, the core shaping form having been removed.

Fig. 7 is a detail vertical section of the construction shown in Fig. 6.

Fig. 8 is a vertical central section of the rear portion of the mold with cores set ready for pouring the coupler.

9 is a plan view of the portion of the mold shown in Fig. 8, parts being broken away for the purpose of more clearly exhibiting the relations of the cores and yoke.

Fig. 10 is a plan View of the rear end of the coupler pattern.

Fig. 11 is a side elevation of the portion of the pattern illustrated in Fig. 10.

Fig. 12"is a detail perspective view of cores for use exteriorly of the yoke at the forward end thereof.

Fig. 13 is a detail perspective view of cores employed in forming the coupler, the forward portion of the main corebeing omitted.

"ed to engage the forward follower or end of a cushioning unit (not shown) and the rear wall or bar 6 being adapted to engage the rear follower or end of the cushioning-unit. The coupler 1 is inseparably but movably interlocked with the yoke 2, the rear end or curved to conform to the trunnions on the and nseparably.

butt of the coupler stem being for that purpose provided on opposite sides with integrally united projections preferably formed as axially alined cylindrical trunnions constituting a pivotal connection allowing the coupler to swing laterally with respect' to the yoke. The forward end ofthe yoke, which is preferably of hooded form hav ng outwardly divergentside walls 8aiford1ng opportunity for the coupler toswing, is pro- Vided with looking shoulders 9 that extendinfront of and overlappingly engage the corresponding trunnions 7. These shoulders 9, whose inner faces are preferably coupler, are integrally V united through the side walls 8 of the yoke and hence permanently maintain the coupler ininterlocked relation with the yoke.

Thefoi'ward face of .the transverse bar 5 connectingthe arms 4 of the yoke is prefrearwardly. The curved bearing surface of the locking shoulders 9 1 form cylindrical pockets on opposite sides of the longitudinal axis of the yoke conforming to and receiving the respective trunnions 7 of the coupler.

Between the curved interior surface 10 and the respective side walls 8 the yoke is preferably provided with shoulders 11, since such a construction facilitates the making of the cores which are formedv within the hooded end of the, yoke at the sides thereof preliminary to casting the coupler in con joined relation to the yoke. As a meansfor "positioning and sustaining the cores for the coupler, the upper and lower walls ofthe yoke are preferably formed with alined openings 12 and the wall or tie bar 5 is preferably provided with a centrally disposed opening 13, these several openings being adapted to receive the-ends of certain of the cores employed.

In producing the device it is preferred to cast the coupler and yoke dissimultaneously, the yoke preferably being cast first.

In following the preferred procedure the yoke 2 is cast and cleaned and cores are then applied adjacent the side walls 8 of the yoke, as shown at 141-. These cores maybe formed conveniently by inserting in the front end of the yoke a form orcore shaping block 15, as shown in Figs. 4c and 5, ramming sand between the shaping block 15 and the the coupler pattern '16 (see Figs. 10 and 11),

the yoke 2 withthe cores in place is lowered into the drag or lowerrpart 17 of the V mold into which it neatly fits. ,The cores 18,

19, 20 and 21 arethen set, sandj is packed inthe opening in the yoke for receiving the cushioning unit, as indicated at 22 (see Fig.

recess 26 of sufficient dimensions to receive the main'core 20 of the coupler and allow for theformation of the walls of the shank of the coupler 1 between thosecores, abuts the forward end of the yoke 2, occupying the space in the mold provided by the bevel or draft .28 on the upperpart-of the rear portion ofthe pattern 16. The cores 19, which contact the sidewalls 8 of the forward end of the yoke and abut against the rear face of the core 18, also occupy the space in the mold formed by the bevel'28 of the cou: pler pattern. The rear end of the main coupler core 20'is preferably provided with a portion27 which extends into the opening 13 in the transverse wall 5 of theyoke, thus supporting and insuring proper positioning 01' the core. The cores 21, whlch abut the main couplercore 20 at 11181131111161" ends, ex-

;tend into the openings 12 of the yoke and formtothe sand in the cope 24c preventing its displacement whenthe cope is being lowered into position for pouring. I claim:'

. 1; A railway draft appliance comprised V of a plurality of metal memberscapable of relative pivotal movement, said members being inseparably connected by casting and beingprovided with interlocking'parts integral with said members, one of said members'being. provided with means for positioninga core during the casting of the adjacent one of said members.

2. A railway draft appliance comprised of a plurality of cast metalmembers capable of relative pivotal movement, said members being inseparably connected by interlocking parts constituting cored trunnions and trunnion sockets, one of said members being provided with means for positioning a trunnion core n the trunnion-sockets durlng the casting of sald trunnions.

3. A railway draft appliance comprised the yoke member being provided with means of a cored coupler member and a yoke memfor positioning a coupler core in proper reber, both of said members being of cast lation to the yoke member during the cast- 10 metal and being inseparably connected by ing of said coupler member.

5 interlocking parts integral with said mem- In testimony whereof I afiix my signature.

here, the coupler member being cast in operative relation with the yoke member, and WILLIAM MQCONWAY, JR. 

